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Revenue Recognition Revenue Recognition (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of Revenue, Remaining Performance Obligation |  |  | 5.00% |
Out of Scope of Topic 606 Revenue [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and Commissions, Mortgage Banking and Servicing | $ 82.5 | $ 68.1 | $ 217.3 | $ 211.5

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